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Title: Intraluminal tissue welding for anastomosis

Abstract

A method and device are provided for performing intraluminal tissue welding for anastomosis of a hollow organ. A retractable catheter assembly is delivered through the hollow organ and consists of a catheter connected to an optical fiber, an inflatable balloon, and a biocompatible patch mounted on the balloon. The disconnected ends of the hollow organ are brought together on the catheter assembly, and upon inflation of the balloon, the free ends are held together on the balloon to form a continuous channel while the patch is deployed against the inner wall of the hollow organ. The ends are joined or "welded" using laser radiation transmitted through the optical fiber to the patch. A thin layer of a light-absorbing dye on the patch can provide a target for welding. The patch may also contain a bonding agent to strengthen the bond. The laser radiation delivered has a pulse profile to minimize tissue damage.

Inventors:
 [1];  [2];  [3];  [4]
+ Show Inventor Affiliations
  1. Livermore, CA
  2. Orinda, CA
  3. Lafayette, CA
  4. Portland, OR
Issue Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
OSTI Identifier:
871926
Patent Number(s):
5827265
Application Number:
08/801224
Assignee:
Regents of University of California (Oakland, CA)
Patent Classifications (CPCs):
A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61B - DIAGNOSIS
A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61F - FILTERS IMPLANTABLE INTO BLOOD VESSELS
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DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
intraluminal; tissue; welding; anastomosis; method; device; provided; performing; hollow; organ; retractable; catheter; assembly; delivered; consists; connected; optical; fiber; inflatable; balloon; biocompatible; patch; mounted; disconnected; brought; inflation; free; held; form; continuous; channel; deployed; inner; wall; joined; welded; laser; radiation; transmitted; layer; light-absorbing; dye; provide; target; contain; bonding; agent; strengthen; bond; pulse; profile; minimize; damage; tissue damage; radiation transmitted; bonding agent; inner wall; optical fiber; laser radiation; hollow organ; tissue welding; intraluminal tissue; /606/

Citation Formats

Glinsky, Michael, London, Richard, Zimmerman, George, and Jacques, Steven. Intraluminal tissue welding for anastomosis. United States: N. p., 1998. Web.
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Glinsky, Michael, London, Richard, Zimmerman, George, & Jacques, Steven. Intraluminal tissue welding for anastomosis. United States.
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Glinsky, Michael, London, Richard, Zimmerman, George, and Jacques, Steven. Tue . "Intraluminal tissue welding for anastomosis". United States. https://www.osti.gov/servlets/purl/871926.
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@article{osti_871926,
title = {Intraluminal tissue welding for anastomosis},
author = {Glinsky, Michael and London, Richard and Zimmerman, George and Jacques, Steven},
abstractNote = {A method and device are provided for performing intraluminal tissue welding for anastomosis of a hollow organ. A retractable catheter assembly is delivered through the hollow organ and consists of a catheter connected to an optical fiber, an inflatable balloon, and a biocompatible patch mounted on the balloon. The disconnected ends of the hollow organ are brought together on the catheter assembly, and upon inflation of the balloon, the free ends are held together on the balloon to form a continuous channel while the patch is deployed against the inner wall of the hollow organ. The ends are joined or "welded" using laser radiation transmitted through the optical fiber to the patch. A thin layer of a light-absorbing dye on the patch can provide a target for welding. The patch may also contain a bonding agent to strengthen the bond. The laser radiation delivered has a pulse profile to minimize tissue damage.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {10}
}
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Works referenced in this record:

Modeling of endovascular patch welding using the computer program LATIS
conference, May 1995

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